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For the Inventor, By the Inventor

Syracuse, NY, United States of America

Crucible Materials Corporation


USPTO Granted Patents = 72



Trademarks = 4

Forward Citations = 660

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55 inventors (with patents filed for the assignee):

goldMedal Kenneth E Pinnow (19 out of 23 patents)

silverMedal William Stasko (14 out of 14 patents)

bronzeMedal Edward J Dulis (8 out of 8 patents)

4.  John J Eckenrod (7 out of 8 patents)

5.  Bao-Min Ma (7 out of 7 patents)

6.  Geoffrey O Rhodes (6 out of 7 patents)

7.  Frank J Rizzo (6 out of 11 patents)

8.  Floyd E Camp (6 out of 9 patents)

9.  Andrew S Kim (6 out of 7 patents)

10.  Carl J Dorsch (6 out of 6 patents)

11.  Kalathur S Narasimhan (5 out of 5 patents)

12.  Charles F Yolton (5 out of 9 patents)

13.  Kalatur S Narasimhan (5 out of 5 patents)

14.  Walter T Haswell, Jr (4 out of 6 patents)

15.  John J Hauser (4 out of 4 patents)


Core Competencies:
Cold-Work Tool Steel
Corrosion Resistant Alloy
High-Speed Steel
Permanent Magnet Alloy
Austenitic Stainless Steel
Rare Earth Magnets
Nickel-Base Alloy
Titanium-Based Material
High Vanadium Tool Steel
Clad Tubular Product
Extrusion-Clad Products
Dysprosium-Iron-Boron Alloy

72 patents:

1. 7615123 - Cold-work tool steel article (2009-11-10),
2. 7288157 - Corrosion and wear resistant alloy (2007-10-30),
3. 6773824 - Clad power metallurgy article and method for producing the same (2004-08-10),
4. 6623690 - Clad power metallurgy article and method for producing the same (2003-09-23),
5. 6475263 - Silicon aluminum alloy of prealloyed powder and method of manufacture (2002-11-05),
6. 6419768 - Method for producing welded tubing having a uniform microstructure (2002-07-16),
7. 6228445 - Austenitic stainless steel article having a passivated surface layer (2001-05-08),
8. 6099796 - Method for compacting high alloy steel particles (2000-08-08),
9. 6077476 - Autoclave operating method (2000-06-20),
10. 6057045 - High-speed steel article (2000-05-02),
11. 5989490 - Wear resistant, powder metallurgy cold work tool steel articles having (1999-11-23),
12. 5976459 - Method for compacting high alloy tool steel particles (1999-11-02),
13. 5936169 - Corrosion resistant, high vanadium, powder metallurgy tool steel (1999-08-10),
14. 5901337 - Method for vacuum loading (1999-05-04),
15. 5900560 - Corrosion resistant, high vanadium, powder metallurgy tool steel (1999-05-04),
Company Overview
Crucible Materials Corporation, based in Syracuse, NY, specializes in the development and manufacturing of advanced materials through powder metallurgy. The company focuses on a diverse range of high-performance alloys, including cold-work tool steel, corrosion-resistant alloys, and high-speed steel. Additionally, Crucible is known for its expertise in permanent magnet alloys, austenitic stainless steels, and nickel-base alloys, catering to various industries that require durable and innovative material solutions.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

72 Patents

#4 in Syracuse, NY

#306 in New York

#5,108 in US

#10,396 in the World

Syracuse, NY (US)
Syracuse, NY, United States of America

Crucible Materials Corporation

Forward Citations = 660

55 inventors:

goldMedal Kenneth E Pinnow (19 out of 23 patents)

silverMedal William Stasko (14 out of 14 patents)

bronzeMedal Edward J Dulis (8 out of 8 patents)

4.  John J Eckenrod (7 out of 8 patents)

5.  Bao-Min Ma (7 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Crucible Materials Corporation. Retrieved from https://idiyas.com/company/crucible-materials

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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